London, April 12 : Kate Middleton fears her becoming a late mother might land her with health troubles, according to sources.

The 27-year-old is presently waiting for her royal beau Prince William to complete his seven-year training as an RAF helicopter rescue pilot.

And her close pals have claimed that Kate is worried she might be in her mid thirties before she has her first child.

"She knows the clock is ticking and she doesn't want to see 30 come and go and find herself short of time and plagued by health problems that come with older pregnancies," the Daily Star quoted a pal as saying.

The couple had made headlines last year when foreign magazines alleged the two had already had a pregnancy scare.

The reports were slammed by their friends and courtiers while William was said to have been stunned. (ANI)